In addition to my professional IT career, I also engage in scientific research. My past and on-going scientific activities include:

- My continuing participation in the development of the Maxima open-source computer algebra system with special emphasis on its tensor algebra and calculus capabilities;
- The key role I played in the resolution of the once famous Pioneer Anomaly, working with researchers from NASA's Jet Propulsion Laboratory;
- Working with John Moffat from the Perimeter Institute on his Scalar-Tensor-Vector Gravity theory (STVG), also known as MOG;
- Also with John Moffat, working on a quantum field theory, his finite electroweak theory;
- Again working with the Jet Propulsion Laboratory, this time on the concept of the Solar Gravitational Lens (SGL) and its possible application to study life-bearing planets in other solar systems;
- Minor research projects related to my IT consulting activities, including an algorithm for efficient patrol car allocation and the analysis of building humidification requirements.

Additionally, I also spend a lot of time contributing on the question-and-answer site Quora, where I have offered thousands of answers, mostly in the areas of physics with which I am familiar, namely general relativity, gravitation and cosmology, and classical and quantum field theory.

Apart from occasional part-time payments and honoraria, most of my scientific activities are unpaid work. Therefore, I rely in part on the support and patronage of readers who find my work valuable and useful.

Should you choose to support my scientific research and science communication activities with a one-time or recurring donation, please consider one of the options below.